I suggest you ...

Ability to include contacts that do not have an email address

We are trying to use HubSpot as our CRM - but need to be able to manage contacts that we have mailing addresses but no email addresses. We also need a calendar function that allows us to set appointments for contacts.

Adding contacts without email addresses is now possible in HubSpot CRM. When in the CRM, you can add a contact without an email. Sign up for early access now at http://www.hubspot.com/sales if you have not already.

Is there a plan to open this up to importing contacts? I'm going to start a new request for that feature. We have a lot of leads to import that don't have emails but have call numbers that our sales force will work through. Thanks

There is an app by Invoka that creates a HubSpot contact by making an "email address" for the caller, for those who don't submit an email on a form. This could also accomplish what you're looking to do. Search for Inbound Call Tracking.

"Follow-up question: once you import the contact without email addresses, how do you plan to market to them or use these records inside of HubSpot?"

We are an investment firm that has about 2000 contacts that we are slowly converting from US mail messaging over to email messaging. Our age demographic ranges from 55 to 80. Some of these are very slow adopters and it will take time to get their emails. Having a CRM inside Hubspot would make this easier. Import once....update often.

Please allow contacts to be created without email addresses. Form conversions with phone numbers, but not email addresses, are still a form of inbound marketing. We manage several businesses that use Hubspot and value a phone number much more than an email address. It's not that they don't want email addresses, but to be told that they cannot accept leads without email addresses is very unfortunate and is limiting businesses opportunities.

Maggie,
I plan to upload the contact info with their Lead Source info. Once their
contact info is loaded into HubSpot (sans email address), and the contact
fills out a form at some point in the future - if we can sync the uploaded
contact info with the form submittal, we can merge the online website
browsing history with the uploaded contact profile.

In other programs I use, I am given options on what field to use for syncing
(e.g. phone number, last & first names, etc.).
Thanks,
Jean